3D SEISMIC IMAGING SYSTEM FOR OIL AND GAS RESERVOIRS

Ziel

This project intends to demonstrate the improvement of the accuracy of 3D seismic processing, where focused on the imaging of those structural or stratigraphic features in the earth's subsurface capable of trapping hydrocarbon accumulations.
This is now an attainable goal thanks to the advent of new computer technologies (Massively Parallel Processors and super-fast 3D graphic workstations) and the results of several lines of convergent geophysical research carried out at CGG over a period of several years, primarily on seismic inversion and migration.
The prototype of a coherent 3D Seismic Imaging System based on these technological breakthroughs was completed by mid-1994. The aim of the project is to apply it for the first time on a scale sufficiently large to verify its robustness and assess its economic viability, with the assistance of oil company end-users.
All contractual objectives are successfully achieved. CGG from now on offers a full commercial service to the clients and has set up a dedicated training scheme for senior geophysicists.
In this project the aim is to demonstrate the viability of a coherent 3D Seismic Imaging System, the development of which is based on the results of several lines of convergent research, each of which has moved us closer to the estimation of a more accurate model of the earth's subsurface velocity structure. Understanding the limitations and domains of applicability of each of these methods is crucial to achieving the stated goal of estimation of a meaningful 3D velocity model of the earth.
In forming an accurate image of the targeted reservoir, two key elements must be in place. Firstly, mathematically precise computer algorithms for processing surface detection seismic data in-hand with computers fast enough to economically process those immense volume of data involved. And secondly, an accurate macro velocity model of the earth's subsurface to guide the data processing in producing a meaningful, precise 3D image.
The two above elements have been addressed, so that a quasi-industrial version of a new integrated 3D Seismic Imaging System aimed at reservoir description is now ready for large scale testing, prior to the commencement of this project:
- newly developed migration processing algorithms (after and before stack) will be executed on a Massively Parallel Processor computer (a CM 5), and
- several branches of recently developed seismic inversion technology will be woven together as a self contained library of computing software running on a super-fast 3D graphic workstation (a SGI) to furnish a means of elaborating and validating a macro-velocity model of the subsurface.

Programm/Programme

ENG-THERMIE 1 - Programme (EEC) for the promotion of energy technology in Europe (THERMIE), 1990-1994

Thema/Themen

5.4 - GEOPHYSICS AND PROSPECTING

Aufforderung zur Vorschlagseinreichung

Data not available

Finanzierungsplan

DEM - Demonstration contracts

Koordinator

COMPAGNIE GENERALE DE GEOPHYSIQUE (CGG)

EU-Beitrag

Keine Daten

Adresse

RUE LEON MIGAUX 1
91341 Massy
Frankreich

Gesamtkosten